So I’ve spent the last few decades with very short hair. It’s naturally quite wavy, and now I’ve started growing it out, it’s sticking out in all directions and looks a total mess, particularly around the ears. What do?

I know what shampoo and conditioner are, and I think I have a comb somewhere. Can anybody point to some good absolute-beginner tutorials, or give advice? I’m sure someone’s been through the same thing…